Cushion for nasal mask



FIG. 1 is a perspective view showing a cushion for nasal mask design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines in the figures depict portions of the cushion for nasal mask that form no part of the claimed design. 

CLAIM The ornamental design for a cushion for nasal mask, as shown and described. 